
CEO, Creative Director
Sadé Bianca Dubois
Our Jewellery is more than a statement of luxury, it’s a reflection of love, confidence, and the connections that shape our lives. When I founded The One Diamond Atelier, it was more than a business; it was a passion project and my return to my talent for luxury, craftsmanship, and creativity.
My journey began in the world of luxury, working with iconic, top-tier brands like Louis Vuitton and DKNY, where I developed a deep appreciation for fine craftsmanship, attention to detail, and the artistry that makes luxury timeless. Later, I followed another calling—training as a counselling psychologist, specialising in relationship therapy, self-esteem, and social anxiety challenges. This work strengthened my understanding of human connection and the emotions tied to the most meaningful moments in our lives.
Now, through The One Diamond Atelier, I bring both worlds together. My trained eye for perfection ensures that every diamond selection and design is nothing short of exceptional, with the highest standards of luxury finishing. But beyond that, I pour my heart into every piece, because I believe jewellery should not only be flawless—it should also feel deeply personal.
For me, every client is more than a customer; they are part of the The One Diamond Atelier family. Whether designing a bespoke engagement ring or a statement piece, my mission is to ensure you feel understood, valued, and celebrated. Because at the heart of luxury is something far greater—the people and the stories that make it truly meaningful.

Bespoke Client Experience Manager, Marketing & Digital Communications.
Janke de Klerk
Jewellery is a reflection of love, memories, and the moments that matter most. That’s what draws me to this world, not just as a profession, but as a way of connecting with people in the most special chapters of their lives.
With a background in fashion and marketing, I’ve always been drawn to creativity and thoughtful design. My studies gave me the tools to blend artistry with strategy, but my true passion lies in the relationships I build along the way. I love getting to know each client, understanding their journey, and guiding them as we create something that reflects their love and commitment.
For me, it’s not just about creating jewellery - it’s about the people behind it. It’s about ensuring you feel understood, supported, and appreciated as you choose a piece that represents something so much bigger than diamonds and gold. Whether you know exactly what you want or need a little guidance, I’m here to walk this journey with you, as a friend, every step of the way.
Beyond my work, I cherish life’s simple joys, sipping my morning coffee, going for a run, having deep conversations, and spending time in my faith community. These moments remind me why I do what I do: to celebrate love, connection, and the beauty of the stories we share.
At the heart of it all, I believe jewellery should feel as personal as the love it represents. And I can’t wait to be part of your journey.
Stories, Inspiration & Expert Advice
Our Atelier Journal
Our Atelier Journal is your invitation to explore our world of inspiration, exquisite design, and the love we infuse into every piece we create. Discover the stories of connection, expert diamond advice, the details of our precious creations, and exclusive glimpses behind the scenes.

Beyond the Ring: The Art of Bridal Jewellery
The Bespoke Bridal Jewellery Experience: Completing Your Dream Wedding Look. Your wedding day is a masterpiece—every detail thoughtfully chosen to reflect your love story, style, and vision. At T...
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Gerdus & Cecile’s Bespoke Engagement Ring Experience
When our client Gerdus set out to create the perfect engagement ring for Cecile, he envisioned something truly special, an elegant, timeless piece that reflected their love story. From hand-selecti...
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Introducing Our Men’s Wedding Bands and Partnership with Father A Nation
We believe jewellery tells a story—a story of love, resilience, and commitment. This belief inspired the launch of our men’s wedding band collection. While small for now, this range is growing week...
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Learn About Diamonds

The Ultimate Guide to Choosing the Perfect Diamond Shape When it comes to selecting the perfect diamond, the shape is a crucial element that reflects personal style, enhances the diamond's brillian...
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The Symbolism and Meaning of the Different Diamond Shapes
Curious about what your diamond shape says about you? From the timeless round cut to the chic princess cut, each shape carries a unique symbolic meaning. Dive into the profound mes...
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Lab-grown diamonds are real diamonds, identical to those mined from the earth, but created in a controlled, high-tech laboratory setting. This article explores the process of making these diamonds...
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